North Pacific storm

14°06.1′N 174°55.6′E

Waves left about 29 Oct 13:57Z, ± 4 h

Placed by 3 buoys, whose own placements lie within 351 nmi of it

Its swell was last measured at 46001 (W Gulf of Alaska) on 8 Nov 19:40Z; the replay ends there.

Each buoy places the storm from how its swell's period shortened as it arrived: the longest waves travel fastest. Fronts are drawn at deep-water group speeds along great circles, and stop at land. How it is worked out